LUGANSK, August 6. /TASS/. Officers of Ukraine’s Security Service are involved in an assassination attempt on head of the self-proclaimed Lugansk People’s Republic (LPR), Igor Plotnitsky, a spokesman for LPR militia said on Saturday.

"According to radio intercepts, diversionists of Ukraine’s Security Service who were trained in (the town of) Severodonetsk have been implicated in the terrorist attack against Plotnitsky in Lugansk," Andrey Marochko was quoted by the LuganskInformCenter as saying.

"They undergo training under the guidance of foreign case officers from special services of the countries that have inspired the Ukrainian punitive operation against Donbass people," he said.

The LPR militia said that not long before the assassination attempt "a special unit of Ukraine’s Security Service had established contact and requested to confirm" the assassination. LPR law enforcement agencies have launched a search operation for the diversionists.

An assassination attempt on Igor Plotnitsky was made earlier on Saturday. A mighty explosive device went off near his car. The injured official was taken to hospital.

LPR Prime Minister Sergei Kozlov said "the facts on the crime scene prove it was a terrorist attack." All law enforcement authorities are involved in the investigation, the prime minister said.